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###### Department of Transportation

###### Federal Aviation Administration

          - 14 CFR Part 39
          - [Docket No. FAA-2023-1705; Project Identifier MCAI-2023-00480-T; Amendment 39-22594; AD 2023-22-10]
          - RIN 2120-AA64

# AGENCY:

Federal Aviation Administration (FAA), DOT.

# ACTION:

Final rule.

# SUMMARY:

The FAA is superseding Airworthiness Directive (AD) 2020-02-13, which applied to certain Dassault Aviation Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes. AD 2020-02-13 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD continues to require certain actions in AD 2020-02-13 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

# DATES:

This AD is effective December 26, 2023.

The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of December 26, 2023.

The Director of the Federal Register approved the incorporation by reference of a certain other publication listed in this AD as of March 12, 2020 (85 FR 6744, February 6, 2020).

# ADDRESSES:

*AD Docket:*                         You may examine the AD docket at                         *regulations.gov*                         under Docket No. FAA-2023-1705; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.                    

*Material Incorporated by Reference:*
      - For EASA material incorporated by reference in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu;                          website                          easa.europa.eu . You may find this material on the EASA website at                          ad.easa.europa.eu .                    
      - For Dassault service information incorporated by reference in this AD, contact Dassault Falcon Jet Corporation, Teterboro Airport, P.O. Box 2000, South Hackensack, NJ 07606; telephone 201-440-6700; website dassaultfalcon.com .                    
      - You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. It is also available in the AD docket at regulations.gov                          under Docket No. FAA-2023-1705.                    

# FOR FURTHER INFORMATION CONTACT:

                        Tom Rodriguez, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 206-231-3226; email:                         *tom.rodriguez@faa.gov*.                    

# SUPPLEMENTARY INFORMATION:

## Background

                    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2020-02-13, Amendment 39-19827 (85 FR 6744, February 6, 2020) (AD 2020-02-13). AD 2020-02-13 applied to certain Dassault Aviation Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G. AD 2020-02-13 required revising the existing maintenance or inspection program, as applicable, to incorporate new maintenance requirements and airworthiness limitations. The FAA issued AD 2020-02-13 to address, among other things, fatigue cracking and damage in principal structural elements; such                           ( print page 80568)                        fatigue cracking and damage could result in reduced structural integrity of the airplane.                

                    The NPRM published in the                     **Federal Register**                     on August 11, 2023 (88 FR 54500). The NPRM was prompted by AD 2023-0059, dated March 16, 2023 (EASA AD 2023-0059) (also referred to as the MCAI), issued by EASA, which is the Technical Agent for the Member States of the European Union. The MCAI states that new or more restrictive airworthiness limitations have been developed.                

In the NPRM, the FAA proposed to continue to require certain actions in AD 2020-02-13 and to require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in EASA AD 2023-0059. The FAA is issuing this AD to address the unsafe condition on these products.

                    You may examine the MCAI in the AD docket at                     *regulations.gov*                     under Docket No. FAA-2023-1705.                

## Discussion of Final Airworthiness Directive

## Comments

The FAA received no comments on the NPRM or on the determination of the cost to the public.

## Additional Changes Made to This AD

The FAA has added paragraph (l) of this AD to clarify that this AD terminates the requirements of paragraph (g)(1) of AD 2010-26-05, Amendment 39-16544 (75 FR 79952, December 21, 2010) (AD 2010-26-05), for Dassault Aviation Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes on which the supplemental structural inspection program (SSIP) has been incorporated into the airplane's maintenance program only. The FAA has also redesignated subsequent paragraphs accordingly. The FAA also added paragraph (b)(2) of this AD to specify that AD 2010-26-05 is affected by this AD. AD 2020-02-13 included this terminating action, but the FAA inadvertently omitted it from the proposed AD.

## Conclusion

This product has been approved by the aviation authority of another country and is approved for operation in the United States. Pursuant to the FAA's bilateral agreement with this State of Design Authority, it has notified the FAA of the unsafe condition described in the MCAI referenced above. The FAA reviewed the relevant data and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on this product. Except for minor editorial changes, and any other changes described previously, this AD is adopted as proposed in the NPRM. None of the changes will increase the economic burden on any operator.

## Related Service Information Under 1 CFR Part 51

The FAA reviewed EASA AD 2023-0059. This service information specifies new or more restrictive airworthiness limitations for airplane structures and safe life limits.

This AD also requires Chapter 5-40-01, Airworthiness Limitations, Revision 10, effective January 1, 2019, of the Dassault Aviation Falcon 20 Maintenance Manual, which the Director of the Federal Register approved for incorporation by reference as of March 12, 2020 (85 FR 6744, February 6, 2020).

                    This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the                     **ADDRESSES**                     section.                

## Costs of Compliance

The FAA estimates that this AD affects 61 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD:

The FAA estimates the total cost per operator for the retained actions from AD 2020-02-13 to be $7,650 (90 work-hours × $85 per work-hour).

The FAA has determined that revising the existing maintenance or inspection program takes an average of 90 work-hours per operator, although the agency recognizes that this number may vary from operator to operator. Since operators incorporate maintenance or inspection program changes for their affected fleet(s), the FAA has determined that a per-operator estimate is more accurate than a per-airplane estimate.

The FAA estimates the total cost per operator for the new actions to be $7,650 (90 work-hours × $85 per work-hour).

## Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority.

The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

## Regulatory Findings

This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.

For the reasons discussed above, I certify that this AD:

(1) Is not a “significant regulatory action” under Executive Order 12866,

(2) Will not affect intrastate aviation in Alaska, and

(3) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

# List of Subjects in 14 CFR Part 39

      - Air transportation
      - Aircraft
      - Aviation safety
      - Incorporation by reference
      - Safety

## The Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

# PART 39—AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows: 

Authority:49 U.S.C. 106(g), 40113, 44701.

§ 39.13

2. The FAA amends § 39.13 by: 

a. Removing Airworthiness Directive (AD) 2020-02-13, Amendment 39-19827 ( 85 FR 6744, February 6, 2020); and

b. Adding the following new AD: 

**2023-22-10 Dassault Aviation:**                             Amendment 39-22594; Docket No. FAA-2023-1705; Project Identifier MCAI-2023-00480-T.                        

## (a) Effective Date

                            This airworthiness directive (AD) is effective December 26, 2023.                                  ( print page 80569)    

## (b) Affected ADs

(1) This AD replaces AD 2020-02-13, Amendment 39-19827 (85 FR 6744, February 6, 2020) (AD 2020-02-13).

(2) This AD affects AD 2010-26-05, Amendment 39-16544 (75 FR 79952, December 21, 2010) (AD 2010-26-05).

## (c) Applicability

This AD applies to Dassault Aviation Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2023-0059, dated March 16, 2023 (EASA AD 2023-0059).

## (d) Subject

Air Transport Association (ATA) of America Code 05, Time Limits/Maintenance Checks.

## (e) Unsafe Condition

This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address, among other things, fatigue cracking and damage in principal structural elements. The unsafe condition, if not addressed, could result in reduced structural integrity of the airplane.

## (f) Compliance

Comply with this AD within the compliance times specified, unless already done.

## (g) Retained Revision of the Existing Maintenance or Inspection Program, With No Changes

This paragraph restates the requirements of paragraph (i) of AD 2020-02-13, with no changes. Within 90 days after March 12, 2020 (the effective date of AD 2020-02-13), revise the existing maintenance or inspection program, as applicable, to incorporate the information specified in Chapter 5-40-01, Airworthiness Limitations, Revision 10, effective January 1, 2019, of the Dassault Aviation Falcon 20 Maintenance Manual. The initial compliance time for doing the tasks is at the time specified in Chapter 5-40-01, Airworthiness Limitations, Revision 10, effective January 1, 2019, of the Dassault Aviation Falcon 20 Maintenance Manual, or within 90 days after March 12, 2020 (the effective date of AD 2020-02-13), whichever occurs later. Where the threshold column in the table in paragraph B, Mandatory Maintenance Operations, of Chapter 5-40-01, Airworthiness Limitations, Revision 10, effective January 1, 2019, of the Dassault Aviation Falcon 20 Maintenance Manual specifies a compliance time in years, those compliance times start from the date of issuance of the original airworthiness certificate or date of issuance of the original export certificate of airworthiness.

## (h) Retained Restrictions on Alternative Actions and Intervals With No Change

                            This paragraph restates the requirements of paragraph (j) of AD 2020-02-13, with no changes. Except as required by paragraph (i) of this AD, after the existing maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (                            *e.g.,*                             inspections) or intervals may be used unless the actions or intervals are approved as an AMOC in accordance with the procedures specified in paragraph (m)(1) of this AD.                        

## (i) New Revision of the Existing Maintenance or Inspection Program

Except as specified in paragraph (j) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2023-0059. Accomplishing the revision of the existing maintenance or inspection program required by this paragraph terminates the requirements of paragraph (g) of this AD.

## (j) Exceptions to EASA AD 2023-0059

(1) This AD does not adopt the requirements specified in paragraphs (1) and (2) of EASA AD 2023-0059.

(2) Paragraph (3) of EASA AD 2023-0059 specifies revising “the approved AMP” within 12 months after its effective date, but this AD requires revising the existing maintenance or inspection program, as applicable, within 90 days after the effective date of this AD.

(3) The initial compliance time for doing the tasks specified in paragraph (3) of EASA AD 2023-0059 is at the applicable “limitations” and “associated thresholds” as incorporated by the requirements of paragraph (3) of EASA AD 2023-0059, or within 90 days after the effective date of this AD, whichever occurs later.

(4) This AD does not adopt the provisions specified in paragraphs (4) and (5) of EASA AD 2023-0059.

(5) This AD does not adopt the “Remarks” section of EASA AD 2023-0059.

## (k) New Provisions for Alternative Actions and Intervals

                            After the existing maintenance or inspection program has been revised as required by paragraph (i) of this AD, no alternative actions (                            *e.g.,*                             inspections) and intervals are allowed unless they are approved as specified in the provisions of the “Ref. Publications” section of EASA AD 2023-0059.                        

## (l) Terminating Actions for Certain Actions in AD 2010-26-05

Accomplishing the actions required by paragraph (g) or (i) of this AD terminates the requirements of paragraph (g)(1) of AD 2010-26-05, for Dassault Aviation Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes on which the supplemental structural inspection program (SSIP) has been incorporated into the airplane's maintenance program only.

## (m) Additional AD Provisions

The following provisions also apply to this AD:

                            (1)                             *Alternative Methods of Compliance (AMOCs):*                             The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the International Validation Branch, send it to the attention of the person identified in paragraph (n) of this AD. Information may be emailed to:                             *9-AVS-AIR-730-AMOC@faa.gov*. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.                        

                            (2)                             *Contacting the Manufacturer:*                             For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or EASA; or Dassault Aviation's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature.                        

## (n) Additional Information

                            For more information about this AD, contact Tom Rodriguez, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 206-231-3226; email:                             *tom.rodriguez@faa.gov*.                        

## (o) Material Incorporated by Reference

(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise.

(3) The following service information was approved for IBR on December 26, 2023.

(i) European Union Aviation Safety Agency (EASA) AD 2023-0059, dated March 16, 2023.

(ii) [Reserved]

(4) The following service information was approved for IBR on March 12, 2020 (85 FR 6744, February 6, 2020).

(i) Chapter 5-40-01, Airworthiness Limitations, Revision 10, effective January 1, 2019, of the Dassault Aviation Falcon 20 Maintenance Manual.

(ii) [Reserved]

                            (5) For EASA AD 2023-0059, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email                             *ADs@easa.europa.eu;*                             website                             *easa.europa.eu*. You may find this EASA AD on the EASA website at                             *ad.easa.europa.eu*.                        

                            (6) For Dassault service information identified in this AD, contact Dassault Falcon Jet Corporation, Teterboro Airport, P.O. Box 2000, South Hackensack, NJ 07606; telephone 201-440-6700; website                             *dassaultfalcon.com*.                        

(7) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195.

                            (8) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit                             *www.archives.gov/​federal-register/​cfr/​ibr-locations*                             or email                             *fr.inspection@nara.gov.*

      ( print page 80570)    
Issued on November 13, 2023.

Ross Landes,

Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service.

[FR Doc. 2023-25497 Filed 11-17-23; 8:45 am]

BILLING CODE 4910-13-P